End cap for tubular packages



June 9, 1931; Br cus 1,809,267

END CAP FOR TUBULAR PACKAGES Filed Aug. 9, 1939 flag/am [1 0572472 Patented June 9, 1931 i i i i i I j o o i UNI-TED smrss i I nnnmnm cnsnme, F Nonwooi), sssscmssm END CAP ron'ru aunzm :eAcKAens Application filed new a, 1930. ser al K074774137.

Th'i's'invention relates to a package prein the interior of therolled sheet shown by pared forshi ment, storage, and sale, and inbroken lines. p o clilding'sheet materiahsuch as felt or paper igure 3 is a perspective view of the end roofing, or floor-covering, such as so-called oil cap shown by Figures 1 and 2. i

'5 cloth,known under Various trade names, the Figure 4- is' a view similar to Figure '2, 5 sheet being of indeterminate length, and showing a different form of the head. i wound'w forma tubular roll. f vFigure 5 shows in perspective one of the,"

The package in some cases includes a tubufasteners shown by Figure 4, before it is corhlar core on which the sheet material'is wound, pleted. I a I r o said core constituting a member of the pack Figure 6 is a view similar to Figured, d] age,;a nd forming the internal surfacethereshowing a modification, I I z v of. 1 In other cases the core is omitted, the Thesame reference characters'indicatethef 1 t inner convolution of the rolledsheet forming same parts in all ofthe figures.

the internal surface of the package The The packagewith which y mproved en'd if V wen'ds of'the package are protected by end cap is used may includefa' tubular core 12" "capsincluding heads,,formed to cover the J (Figure usually of stifi' paper board, and package en'ds,'and plugs fixed to "the heads sheet material 13,"w'ound ina roll on thecQr'eQ and inserted in the endportions {of the in- The coreand the end caps engaged with its} U 'ternal surface of the package, and engaged ends, constitute a spool, the lengthof which 2 0 thereWithtOcOnfine the heads [against the depends on the width of the sheet material ends ofthe package. wound thereoni If a core is not employed,"

The invention is an improvement on'that the internal surface 'ofthe package is formed 1 disclosed by my Patent No. 1,7 39,291, dated by the inner convolution of the rolled sheet].

December 10, 1929, the device of that patent as indicated. by Figure 21 "The rolled; sheet zfijbeing a protective end cap comprising a head is shown by broken 'lines'in Figures 1 andfl '7 7 The object of the present invention isfto. end portion of the package.

' formed to cover an end of a tubular package, The end cap,}as in my former patent, in- I v.

and a tubular metallic plug fixedto the head eludes ahead 14,which is formedto cover an? and adapted to enter and frictionally engage end ofthepackage, and may be a disk of'stiif K an end portion of the internal surfaceof the paper board, orja'ny other suitable material;

30' package, the plug being composedof a plu-- Thefimp'revedcap embodying the present so rality of metal rings and metal holding meminvention includes also a one-piece cylindribers fixed within the rings and spacing the calsheet metal tube 15, constituting aplug v same apart", the holding member having atprojecting. from one side of the head and taching means engaged with the head. I adaptedto enter and" frictionally engage an provide a'protective end cap which is simpler The plug 15'is provided with integral stiif and-of less expensive construction than my ening means opposing distortion or dentin'g' patented cap, and is not lesseflicient. ofthe plug, said means being preferably ems V e The invention is embodied in an end cap" bodied in spaced apart ribs 16, extending a which includes a metallic plug characterized about the periphery of the plug, an annular see as hereinafter stated. 7 inner flange lnprojecung inwardly from the 0f the accompanying drawings forming a inner'end of" the'plug, and an annular outer part of this specification fiange1'9,which1nay project outwardlyfrom' Figure 1 is a side view, showing a package theouter end ofthe plug-,as shown byFigures J which includes a pair of protective end caps 1,2,3 and 6, or inwardly, as shown by Fig '95 embodying the invention, and a core shown juice l. Said flanges are in planes latri'ght party in section, the rolled sheet being shown angles to the" aids of the plu'g'." I amfen by broken lines. 7 I abl'ed',byprovidingthe said stiifeningimeansg Figure 2 shows in section one of the end to makethe plug from sheetmetalor'censid "caps on a larger scale, the plug being inserted erably less thickness than that required for suitable means such as rivets 18 or seaming, or electric welding.

the rings and the metal holding members disclosed by my former patent, and to make the entire plug in one piece, instead of a plurality of pieces as heretofore, the plug being made by bendin a single sheet blank and uniting the meeting edges of the blank by any (Figure The outer flange 19 is seated on the inner side of the head 14 and constitutes an element shown as wire staples including necks 20, and

' I legs or prongs 21. The necks are seated on the outer side of the h ad l t, and the legs pass through the head and the flange 19, and their bent ends are seatedon the inner side of the flange. Any other "form of fastener 7 adapted to clamp to ether the'head 14 and flange 19 may be employed.

The plug 15 is provided also with spurs 22, forced outward from the periphery of the plug between its ends and adapted to automatically engage the internal surface of the package' The spurs 22 are inclined "as indioatedby Figures 2 and 3,.to permit inward movement of the plug into the package, andoppose the wi hdrawal of the plug from the package.

The disk 14 may constitute a flat-sided inner portion of the head, and the headmay include also an outer bufler portion bearing tain shocks or jars such as may be caused on the outer'side of the said inner portion, and "of smaller diameter than the latter, as shown by Figures 4: and 6.

Figure it; shows a buffer portion 24, com posed of a plurality of disks'of fibrous material, such aspaper, said disks being bound together and secured to the inner head portion 14 by fasteners which may be the above described staples, r of any other suitable character.

- Figure 6 shows a buffer portion composed of a dished sheet metal body 25, and a flange 26, attached to the head portion 14 and the tube flange 19 by staple-shaped or other fasteners.

The outer margin of each of said buffer portions has a smaller diameter thanthe innerhead portion 14 and is arranged to susby rough handling of the package, and transmit the same: directly to the Wall of the tube 15, and at the same time, protect the rela tively thin margin of the inner head porion 14. I

This application is a continuation in part of my application filed February 13, 1980, Serial No; 428,055.

axis.

and bearing on the said outer flange, and an outer bufler portion bearing on the outer side of said inner portion and of smaller diameter than the latter, the outer margin of said buffer portion being arranged to sustain shocks or jars, transmit'the same di- "ectly to the Wall or the plug, and protect he margin of the inner portion.

2. A protective end cap comprlslng a head I primed to cover an end of a tubular package,

l a tubular sheet metal plug formed to enter and bear on an end portion of the internal surface of such package and having outer and inner stiffening flanges in planes at right angles to the of the plug, the outer flange bearing on the inner side of the head, and fastenin members clamping the head and the outer flange together, the inner flange projecting inwardly from the inner end of the plug and resisting pressure tending to collapse said inner end, the outer flange, the head and the fastening members resisting pressure tending to collapse the outer end of the plug, the plug being provided With spurs projecting outwardly from its periphery and adapted to automatically engage the internal surface of the package, said spurs being inclined relative to the axis of the plug to permit inward movement on the plug into the package and prevent the withdrawal of the plug therefrom.

3. A protective cap of the character and for the purposes set forth comprising a plug element adapted to enter one end of the bore of a tubular package, a head element projecting radially fromsaid plug to overlap the end of such a package, and a bufl'er element at the outer side of said head and or" less diameter than the head, and otherwise of such shocks or jars of impact applied endwise of the package and at an inclination to its in testimony whereof I have aifixed my signature.

Blllldiildlhl CUSHING.

dimensions as to sustain the p 

